End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
http://khatabook.com/blog/hi/गैर-परिवर्तनीय-डिबेंचर-एनसीडी--क्या-आपको-निवेश-करना-चाहिए/